Articles in Linux | UserComp.com

Converting VMDK to QCOW2 Format in ESXi with Rocky Operating System

Learn how to convert a VMDK disk to QCOW2 format using the qemu-imgconvert command in ESXi with Rocky operating system.

Configuring Reverse DNS for Home Email Server IPv6 on Ubuntu 22.04

Learn how to configure Reverse DNS for your home email server using IPv6 on Ubuntu 22.04. Ensure reliable email delivery by following this step-by-step guide.

Batch Converting MKV to MP4 with ffmpeg

Learn how to batch convert MKV files to MP4 using ffmpeg. This process is useful when dealing with a large number of videos and the need for MP4 format.

Failed Mount API: Filesystems with Updated Partition UUIDs in Linux

This article discusses a common issue with Failed Mount API in Linux when dealing with filesystems that have updated partition UUIDs. We will cover the causes and solutions using the sgdisk command.

Resolving Many Concerns and Questions about Transitioning from Windows to Linux, Specifically Wine

This article aims to address common concerns and questions from users who are considering transitioning from Windows to Linux, with a focus on using Wine for specific applications.

Moving a LUKS-encrypted btrfs volume right in GParted

When attempting to move a LUKS-encrypted btrfs volume using GParted, the tool may not recognize the option to move the btrfs volume. This article provides a solution to this issue.

Troubleshooting WireGuard Server: Failed to Start on Ubuntu 22.04

This article provides a solution to the issue where the WireGuard server fails to start on Ubuntu 22.04. Users may encounter this problem after recent changes to the system. In this article, we will guide you through the steps to diagnose and resolve the issue.

Detecting a Remote Keyboard (USB Dongle) in Linux

Learn how to detect and use a remote keyboard (USB dongle) in Linux using a Go-developed application. This article covers the process of trying to figure out connected keyboards, including Bluetooth and USB.

Rebooting DNS Server in Docker Container: A Step-by-Step Guide

Learn how to reboot a Technitium DNS Server container in Docker to resolve issues. Follow these steps to ensure your DNS server is running smoothly.

Resolving Error: Unable to Install MariaDB Packages on Ubuntu

This article explains how to resolve an error encountered during the installation of MariaDB packages on Ubuntu using the apt package manager.

Getting Back Root with Virt-Manager: A Tech Support Guide

Learn how to recover root access in Virt-Manager environments with this comprehensive tech support guide. This article offers practical solutions and steps to regain control.

Avahi: Setting the Visibility Duration of Local Domains on Linux Devices

Learn how to set the visibility duration of local domains on Linux devices using Avahi. This includes instructions for devices running Linux and Android with Termux.

Ubuntu Server on Raspberry Pi 4: Layer2 WiFi-Eth Bridge Not Forwarding DHCP Requests

This article discusses a common issue with setting up a Layer2 WiFi-Eth Bridge on Ubuntu Server running on a Raspberry Pi 4, where DHCP requests are not being forwarded.

Linux Kernel Support for Standard Audio CDs (CDDA)

This article discusses the support for Standard Audio CDs (CDDA) in Linux Kernels. CDDA is the standard format for commercial audio compact discs. Learn how to check if your Linux kernel supports CDDA and how to install necessary drivers.

Using git-config to Switch Repository with Host Address in ssh config

Learn how to use git-config to switch Git repositories based on the host address defined in your ssh config file.

Setting up Dockerized WireGuard with Custom DNS in Multi-Lab Environment

Learn how to set up Dockerized WireGuard with custom DNS in a multi-lab environment. Create a host network and assign IP addresses to each lab.

Resolving Connection Issues with Ubuntu's WSL2 and MySQL: Changing bind-address in /etc/mysql/mysql.conf.d/mysqld.cnf

This article explains how to resolve connection issues between a Ubuntu operating system running on Windows Subsystem for Linux 2 (WSL2) and MySQL when the bind-address configuration in /etc/mysql/mysql.conf.d/mysqld.cnf has been changed from 127.0.0.1 to 0.0.0.0.

FFmpeg RTSP Recording: Video Timestamp Mismatch between Recorded MP4 File Timestamp

This article discusses a common issue encountered during FFmpeg RTSP recording where the video timestamp in the recorded MP4 file does not match the original RTSP stream timestamp. We will explore the possible causes and provide solutions to resolve this issue.

Virtual Machine Crashing During Migration to Specific Host: Troubleshooting

This article discusses the common issues encountered when migrating a Virtual Machine (VM) to a specific host in a cluster environment, including solutions for VM hangs and unavailability after migration.

Troubleshooting Lag in Chrome with Burp Terminal on Kali Linux i7-13700K

A Linux user, not proficient in the system, encounters lag issues in Chrome while using Burp Terminal on Kali Linux i7-13700K. This article provides potential solutions to help resolve the problem.

Linux Expert Sought for Crisis: New Hardware Performance Woes

A Linux user in need of assistance seeks a Linux specialist to help resolve performance issues with new hardware. The user recently upgraded their PC with a 4th gen Intel i5 1050Ti graphics card and a 913th motherboard, but has encountered unexpected difficulties.

Persisting SSH Keys for Cron Jobs: Keeping Connections Alive

Learn how to keep SSH keys alive for cron jobs to prevent authentication failures due to disconnected sessions.

Difficulties Adding IPv6 Access to VPS: A Common Issue and Solutions

Many users encounter difficulties when trying to add IPv6 access to their Virtual Private Servers (VPS). In this article, we discuss common issues and potential solutions for configuring IPv6 on VPS using NAT IPv4 Virtualizors and other methods.

DiskCryptor Installation Error: 'Error occurred installing driver (error code 2)'. How to fix it?

If you encounter an error code 2 while installing DiskCryptor driver, follow these steps to troubleshoot and fix the issue.

TLS Key Negotiation Timeout in DockOvpn: A Solution

This article discusses a common issue with DockOvpn, an OpenVPN implementation in Docker, and provides a solution for TLS key negotiation timeouts.

IPFW Log: Understanding iPFW Correspondence and pf PFCommands

In this tech support article, we will discuss the correspondence between IPFW and pf commands, and how to interpret the IPFW log for these correspondences.

CentOS Stream: Unmounting Issue After Adding New Disk Drive

Users encountering issues unmounting a newly attached disk drive in CentOS Stream. Learn how to resolve this problem and retain data from the previous directory.

Building a Yocto Release with Docker for ARM: A Guide to Setting Things Up

In this tech support article, we'll walk you through the process of setting up a Yocto Project release using Docker on an ARM platform. We'll cover the necessary steps, including adding required packages in the local.conf file.

Resizing Partitions da2 on RHEL 7.2 and 7.6 Machines: A Success Story

In this tech support article, we discuss the process of resizing partitions da2 on RHEL 7.2 and 7.6 machines, allowing for the growth of the /var and root filesystems. Learn how to successfully complete this task.

Linux Tech Support: Successfully Forwarding Mirrored Ethernet Packets to an External VNIC

In this tech support article, we'll guide you through the process of successfully forwarding mirrored Ethernet packets to an external VNIC using Linux and tc AWS Traffic Mirroring.

Weird AppArmor Behavior Prevents Network Reach: Compiling AppArmor Sources

Experiencing issues with AppArmor preventing network reach during the compilation of sources? This article provides a suggested solution.

Redirecting Output from One Terminal to Another: tty1 to tty2

Learn how to redirect the output of a command from one terminal (tty1) to another terminal (tty2) using the echo command.

CMake Package Not Detected: hyprcursor Dependency Issue

Users encountering issues with CMake not detecting required dependencies, specifically hyprcursor, despite it already being installed. This article provides potential solutions to resolve the dependency conflict.

Resolving Error: Missing System Files for Secure Boot in USB Live Environment

This article provides solutions to resolve errors related to missing system files for Secure Boot in a USB live environment. The article includes a step-by-step guide using a single command to restore the necessary files.

Nmap Towards Metasploitable2: Scanning 1000 Ports

Learn how to practice Nmap using Metasploitable2 and scan 1000 ports. Discover ignored states and view the results of 1000 closed ports scanned on IP address xxx.xxx.xxx.xxx.

GRUB Bootloader: Ubuntu 'Not Selecting' vs. 'Ubuntu, Linux 6.2.0-26-generic'

Users report encountering a GRUB bootloader issue where Ubuntu isn't selected during boot. This article discusses the possible causes and solutions for this problem, specifically when 'Ubuntu' isn't appearing as an option and only 'Ubuntu, Linux 6.2.0-26-generic' is visible.

Ping Issue: Windows 11 and Kali Linux Laptop Not Responding to Ping Commands

Users report that their Windows 11 and Kali Linux dual-boot system is not responding to ping commands when trying to ping IP addresses such as 192.168.1.84 and 192.168.1.51. This issue may cause ping hangs.

Comparing Directories with Usefdupes: Identifying and Deleting Duplicates

Usefdupes is a powerful tool for comparing two directories and identifying duplicate files. This article explains how to use it to compare directories, identify files present in both directories, and delete duplicates.

Efficiently Managing Multiple Virtual Machines with Virt-Manager Hypervisor

Learn how to efficiently manage multiple virtual machines using Virt-Manager hypervisor software on a 12-core Ryzen PC for business purposes.

Setting up Kiosk Mode for Ubuntu 20.04 with PySide6 GUI

Learn how to set up Kiosk Mode on Ubuntu 20.04 using PySide6 for a single application, making the application visible to users.

Restoring Folder Names after Accidental Bulk Rename in WSL2

Learn how to restore folder names after an accidental bulk rename in WSL2. This article covers the steps to use the 'scanandfix' command to correct corrupt files.

Bash Script: Listing Files with tputs and ls-t

In this tech support article, we will show you how to list files using Bash script with the tputs and ls-t commands.

Unable to Stream Two TMPLAY streams simultaneously on nginx/1.22.1 with ffmpeg on Raspberry Pi

This article discusses an issue where two TMPLAY streams cannot be played simultaneously using nginx/1.22.1 and ffmpeg on a Raspberry Pi. It provides possible solutions and workarounds.

Optimizing Neovim and Other Vim-Based Terminal Editors for Slow Systems

Learn how to optimize Neovim and other Vim-based terminal editors for slow systems. This article covers steps for users on Ubuntu 23.10 with an i5-8400, 24GB RAM, OSSD, and Nvidia RTX 2060, who have encountered performance issues using 'oh-my-fish' shell and good old bash. We'll explore Neovim configuration tweaks.

Disabling Gnome/Xrandr Monitor Settings Automation